Simplify your engine conversion with the Kustom Truck Engine Installation Harness, custom-designed for installing a Cummins ISX engine with CM871 electronics into a Pre-NAMUX 1999-2003 Peterbilt truck equipped with Cummins CM570 chassis electronics. Engineered for seamless integration, this harness ensures reliable connectivity between the Cummins ISX CM871 engine and the analog Cummins CM570 electronics of Peterbilt class 8 trucks, such as models 379, 378, or 357, delivering robust performance in heavy-duty applications. The kit includes a precision-engineered harness tailored for precise fitment, making it ideal for mechanics and fleet owners performing engine swaps or replacements. Note: This harness is exclusively compatible with Peterbilt Pre-NAMUX trucks featuring Cummins CM570 chassis electronics. Due to variations in factory chassis emission harness connectors, the emission breakout connectors on this harness may require modification for direct fitment. To ensure proper fitment, provide the last 6 digits of your chassis VIN and the Cummins engine serial number when ordering, and contact Kustom Truck for fitment confirmation if uncertain about your chassis electronics. Upgrade your Peterbilt truck’s engine installation with this precision-engineered harness, crafted for durability and performance.
Kit Includes:
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(1) Engine Installation Harness
Key Features:
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Engine installation harness for Cummins ISX CM871 in 1999-2003 Pre-NAMUX Peterbilt trucks
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Engineered for seamless integration with Cummins CM570 chassis electronics
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Compatible with Peterbilt class 8 trucks, including models 379, 378, and 357
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Ensures reliable engine-to-chassis connectivity for heavy-duty performance
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Emission breakout connectors may require modification due to factory connector variations
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Note: Only for Cummins CM570-based Pre-NAMUX Peterbilt chassis; provide VIN and engine SN for fitment confirmation with Kustom Truck
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Engineered for precise fitment and durable performance
Upgrade your Peterbilt truck’s engine installation with Kustom Truck Parts’ Engine Installation Harness, crafted for durability and precision.
